Blix, E., Kumle, M., Kjaergaard, H., et a. (2014). “Transfer to hospital in planned home births: a systematic review.” BMC Preg Childbirth 14:179.

Boyle, A., U. M. Reddy, H. J. Landy, et al (2013). “Primary cesarean delivery in the United States.” Obstet Gynecol 122(1): 33-40.

Bugg, G. J., F. Siddiqui and J. G. Thornton (2013). “Oxytocin versus no treatment or delayed treatment for slow progress in the first stage of spontaneous labour.” Cochrane Database Syst Rev (6): CD007123.

Carlhall, S., Kallen, K., Blomberg, M. (2013). “Maternal body mass index and duration of labor.” Eur J Obstet Gynecol Reprod Biol 171:49-53.

Chaemsaithong, P., Madan, I., Romero, R., et al. (2013). “Characterization of the myometrial transcriptome in women with an arrest of dilatation during labor.” J Perint Med 41: 665-681.

Cheng, Y. W., L. M. Hopkins, R. K. Laros, Jr. et al (2007). “Duration of the second stage of labor in multiparous women: maternal and neonatal outcomes.” Am J Obstet Gynecol 196(6): 585 e581-586.

Cheng, Y. W., B. L. Shaffer, A. S. Bryant et al (2010). “Length of the first stage of labor and associated perinatal outcomes in nulliparous women.” Obstet Gynecol 116(5): 1127-1135.

Cheyney, M., Bovberg, M., Everson, C., et al. (2014). “Outcomes of care for 16,924 planned home births in the United States: The Midwives Alliance of North America statistics project, 2004 to 2009.” J Midwifery Womens Health 59:17-27.

Cohen, W. R., Friedman, E. A. (2015). “Misguided guidelines for managing labor.” Am J Obstet Gynecol 212: 753.e1-3.

Dawood, F., Dowswell, T., Quenby, S. (2013). “Intravenous fluids for reducing the duration of labour in low risk nulliparous women.” Coch Data Sys Rev, 6, CD007715.

Dolea, C., and AbouZahr, C. (2003). “Global burden of obstructed labour in the year 2000.” Global Burden for Disease 2000, Evidence and Information for Policy, World Health Organization, Geneva. (Free full text).

Friedman, E. A. (1955). “Primigravid labor; a graphicostatistical analysis.” Obstet Gynecol 6(6): 567-589.

Frigo, M. G., G. Larciprete, F. Rossi, et al (2011). “Rebuilding the labor curve during neuraxial analgesia.” J Obstet Gynaecol Res 37(11): 1532-1539. Click here.

Gabbe, S. G., J. R. Niebyl, H. Galan, et al (2012). Obstetrics: Normal and problem pregnancies, Elsevier. Click here.

Gardberg, M. and M. Tuppurainen (1994). “Persistent occiput posterior presentation–a clinical problem.” Acta Obstet Gynecol Scand 73(1): 45-47.

Gimovsky, A. C., & Berghella, V. (2016). Randomized controlled trial of prolonged second stage: extending the time limit vs usual guidelines. Am J Obstet Gynecol, 214(3), 361 e361-366.

Goer, H. and A. M. Romano (2012). Optimal care in childbirth: the case for a physiologic approach. Seattle, Washington, Classic Day Publishing.

Gupta, J. K., G. J. Hofmeyr, M. Shehmar (2012). “Position for women in the second stage of labor for women without epidural anesthesia.” Cochrane Database Syst Rev(5): CD002006.

Hamilton, E. F., Warrick, P. A., Collins, K., et al. (2016). “Assessing first-stage labor progression and its relationship to complications.” Am J Obstet Gynecol 214: 358.e1-8.

Harper, L. M., A. B. Caughey, A. O. Odibo, et al (2012). “Normal progress of induced labor.” Obstet Gynecol 119(6): 1113-1118.

Harrison, M. S., Mabeya, H., Goldenberg, R. L., et al. (2015). “Urogenital fistula reviewed: a marker of severe maternal morbidity and an indicator of the quality of maternal healthcare delivery.” Matern Health Neonatol Perinatol 1:20. (Free full text).

Kavitha, A., K. P. Chacko, E. Thomas, et al (2012). “A randomized controlled trial to study the effect of IV hydration on the duration of labor in nulliparous women.” Arch Gynecol Obstet 285(2): 343-346.

Kawakita, T., Reddy, U. M., Landy, H. J., et al. (2016). “Indications for primary cesarean delivery relative to body mass index.” Am J Obstet Gynecol 215: 515.e1-9.

Klasko, S. K., R. V. Cummings, J. Balducci, et al (1995). “The impact of mandated in-hospital coverage on primary cesarean delivery rates in a large nonuniversity teaching hospital.” Am J Obstet Gynecol 172(2 Pt 1): 637-642.

Kominiarek, M. A., J. Zhang, P. Vanveldhuisen, et al (2011). “Contemporary labor patterns: the impact of maternal body mass index.” Am J Obstet Gynecol 205(3): 244 e241-248.

Laughon, S. K., J. Zhang, J. Grewal, et al (2012). “Induction of labor in a contemporary obstetric cohort.” Am J Obstet Gynecol 206(6): 486 e481-489. (Free full text).